Karen Hamilton, general secretary, Canadian Council of Churches, and Charles Reed, director, international affairs, Church of England

Working with the countries of the G20, BRICS and United Nations

Andrew F Cooper, distinguished fellow, Balsillie School of International Affairs; and professor, Department of Political Science; director, Centre for Studies on Rapid Global Change, University of Waterloo

Looking towards Russia's G8 presidency in 2014

Marina Larionova, International Organisations Research Institute, National Research University Higher School of Economics